PBO纤维常压低温等离子体处理可行性分析

Feasibility Analysis on PBO Fibers Treated by Atmospheric Pressure Low Temperature Plasma

PBO纤维是具有比强度、比模量、耐热性和阻燃性等超级性能的新型高科技纤维,可用作先进复合材料的增强材料,但因其与树脂之间的界面粘接性能差需要对其表面改性。低温等离子体是一种表面改性新技术,它是通过在纤维表面产生刻蚀、交联或引入官能团等而改善纤维表面的粘接等性能。本文简述了PBO纤维的结构、性能、在复合材料中的用途和对PBO纤维的表面改性方法。在实验基础上,笔者对PBO纤维运用自行研制的常压低温等离子体设备在线连续化表面改性做了可行性分析。

PBO is a new kind of fiber with a lot of super performances in such properties as tensite strength, high modutus, ftame and chemical resistance, high temperature abrasion resistance and its applications include many fields especially in super fiber reinforced advanced composites. However, the adhesion between fiber and matrix in a composite system is a primary factor for stress transfer from matrix to fiber. Low temperature plasma treatment is a convenient technique for the surface modification of PBO fibers for improving the surface properties （e. g. adhesion）, which result from introducing functional groups or making cross-links with the surface of PBO fibers. In this report, following the introducing about the structure characteristics, properties and application of the PBO fibers, the feasibitity on PBO fibers treated by atmospheric pressure low temperature plasma was expatiated. The low temperature plasma apparatuses was invented and made by us.